Centrifugal molding machine



Jan 24, 1933. I w. A. GEISLER CENTRIFUGAL MOLDING MACHINE Filed Sept. 13. 1930 2 Sheets-Shet 1 Jan. 24, 1933. w, GE|SLER 1,895,245 CENTRIFUGAL MOLDING MACHINE Filed Sept- 13. 19 2 Sheets-Sheet 2 R .3 E mr m ,m *0 a mw MA J 05 6 W 1 .3. MW 7 B r 0 Patented Jan. 24,1933 i i I i I UNITED STATES PATENT onionv WILLIAM A. GEISLEB, OF NEWARK, NEW JERSEY ASSIGNOIP, BY MESNE ASSIGNMENTS, TO DUBAFEB (INC), 01: DOVER, DELAWARE, A CORPORATION 01 DELAWARE cmrrnmeu. momma mcnnm Application filed September 13,1930. Serial. in). 481,627.

lhe present invention relates to centrifuwith the accompanying drawings, wherein:- al casting machines and embodies, more Figure 1 is a view in vertical section taken specifically, an im roved device for casting through a mold constructed in accordance articles centrifuga y, the machine being so with the present invention, showing the imformed that the metal may be poured, the arproved device embodied in the present inventicle cast, and its removal from the mold eftion. fected in a minimum time and amount of Figure 2 is a plan view of the mold shown labor required. More particularly, the inin Figure 1. v vention relates to.casting machines by means Figure 3 is a segmental view in section,

10 of'which articles may be readily cast in pershowing a mold similar to the mold in Figure .manent rotating molds and removed fromthe 1 and adapted to cast a different form of molds quickly to permit the mold to be ready structure. to receive a subsequent pouring in a minimum Referring to the above drawings, a suitable time, substructure is shown at 1, having a recess 2,

15 The art of casting. devices centrifugally is within which a core supporting element is now developed to a stagle in which the rotaadapted to be received. Upon the substruction imparted to the mo ten metal is utilized ture 1, a mold base 3 is mounted, this base to cause the same to reach remote portions of being of any desired material conveniently a mold. In this connection, pipes and other. formed and provided with openin s 4 in'the 2o cylindrical objects are now being cast in horiopposite sides thereof. Through t eseopenzontal molds with considerable skill and efings, the castings are adapted to be removed ficacy. The-present invention thus seeks to in a manner described hereinafter. Re-

. employ the lmown advantages of centrifugalinforcing webs 5 may be formed on the base ly cast metal and provide amachine by means and a plurality of lands 6 are formed at 26 of which articles may be,so cast under methspaced intervals. about the top of the base ods aflording quantity production. vto mount spaced standards v7.

An object of the invention, accordingly, is Rollers 8 are journaled in-these standards to provide a casting mechanism of the cenand are adapted to receive the wei ht'of a trifugal type, such mechanism being promold 9, provided with a horizontal fl ange 10.

30 vided with means for readily removing the Suitable reinforcing webs 11 may be formed 0 casting from the mold and core in a minimum between the flange and mold to impart sufliti e, 7 cient strength to the structure and the mold A further object of the invention is to rois thus rotatable upon base 3. vide a device of the above character in w ich Also formed upon the base-3 are lands 12 35 a portion of the mold is adapted to serve as which are adapted to mount horizontally a casting supporting device whereby such-deadjustable rollers 13 .whichengage the pevice, together with its casting, may be readriphery of the flange 10. In this fashion, ily removed from the mold. Afurther oblateral displacement of the mold 9'is preject of the invention is to provide, in 'amold vented and vibration .thereof 'efiectively 4 4 of the above character, means whereby aporeliminated. The mold 9 is formed with a tion of the molding surface serves as a casting downwardly projecting shroud 14, having a sup ortingmember, such portion being readhorizontal flange 15, upon which an annular ily removable together with its casting. rack 16 is secured. -A power shaft 17 is A further ob'ect of the invention is toprojournaled in the base 1 and drives a'. bevel 45 vide a means or readily removing the core gear 18 which engages with the rack 16 to of a mold of the above character to-permit the impart rotary motion to the mold 9. casting to be're'moved therefrom. The mold is formed with a molding sur- 7 'Further objects, not specifically enumerface 19,- having an upwardly extending .ated above, will be apparent as the invention funnel portion 20. Between the moldin sur- W is described in greater detail in connection face and the outer wall of the mold, 'a 0 ama v ber is formed which is adaiited reduced into the chambert to escape from the I prevent the fluid from flowing respect thereto. Since 47 is also provided to seal-the ceivea cooling medium, the me um being discharged through pi es'21' into an annular channel 22. The cool in medium is introough anammlar space 23, between the outer wall of the mold and thefunnel 20, as indicated by the arrows m igure .1. To prevent the escape of the cooling medium from the mold, a circumferentlal groove 24 is formed adjacent the opening 23 to catch chamber within the mold. In pouring froma ladle 25, a fitting 26 is 1plil'fiferably nserted within the mouth of the nel in accordance with past pourin practice, a stopper 27 of usual form being efiavated to introduce the metal into the mold.

A core 28 of the mold is formed with a horizontal flange 29 which is adapted to support a ring 30. This ring. is formed with a moldin surface 31 which in eflect .serves as the ttom of the mold and supports the casting during and the core. A core 28 and forms closed by a plate 34 having an axial hollow 'sleeve35.-. x A downwardly extending sleeve 36 is formed on the late 32 and provided with a shoulder 37 which is adapted to receive a bearing 38' to mount the core rotatably upon a sup rtingshaft 39.. .Thesupporting' is ho ow'and communicates with an outlet ipe 40, as clearly shown in Figure 1.

ough the bottom of the supp a pipe 41 entends, passing axially through the-supportin shaft and a hollow e nsion 42 thereof. E'he pipe 41 hke passes through the hollow sleeve and is thus adapted to introduce a. cooling fluid into the chamber 33.

A flange P43 is f 41 to u r extremi o pipe ppe ty back through the hollow. sleeve 35 before beingintroduoed cured to. the

45 into the chamber 33.

It will thus be seen that the pipe 41, amp

porting-shaft 39 a hollow extension '42 thereo are stationa elements .while the core 28 and mounting the cooling fluid is 33, the connection geresent in the chamber tween. the p tiona elements is rendered fluid-tight by the cover plate 34, which forms a amber 44Iwithin the upwardly ex tending cylindrical flange 45, formedupon A'relief vent 46 maybe provided to drain of fluid which may have collected in the chamber 44 and a sealin washer joint tween. the hollow extension 42 and the base plate 32 eflectivelyi ormed as a continuation of the ing' shaft 39 is a sleeve 48, which is provided 06 with a rack 49. The sleeveis slidably mounted a collar 50 with the base 3 engages with the rack 49.

5.3 and any fluid which attempts casting formed, the

lts'removal from the moldbottom plate32 supports the a chamber 33, which is shaft orting shaft,

preferably se-' are w th

plate 32110133139 witlr' rotatable elements and' the sta-- supportand structure 1, a shaft.

48 axially bymeans of a fioinion 52 which imparted to the shaft 51 bfi' gears 54 or any 0t er suitable device. Extendingbetween the opposite sides of the base 3 and secured to the sides of the openings 4 so spaced as to eng'a e the cylindrical portion of the ring 30. is clearly shown in dot-and-dash lines in I!" re 1. .In this manner, after the metal has n poured and the I c0re,"t0gether with the casting, is dropped until the ring engages core and sleeve 48freesthe-casting therefrom and enables the casting and rin to be removed by being slid along the c A fresh ring is thenvplaced upon the chanannels 55a which is preferably formed mounted upon the subi 51 being journalled in' the\ co llar' 50 and base 3 to move the sleeve tary motion is means of a crank the channels 55. Continued movement of the nels and picked up by the core during-its With reference to the modification shown is formed with adif 1n F1gure 3 the core 56 ferent profile, adapting the same to cast a ring 57, the zontaf bottom. casting within which anannular a casting surface 60 core being formed with a hori-f surface 58 andxa ver- 7 tical surface 59. The mold is formed with recess 61isformed in order that the casting have a circumferential rib 62, aring 63 p in formed with a complementary castmg'sur ace-64 to form a p Inthis manner thecore ma lie-dropped, as described in connection wit mg removed from the mach ne. 7

While the invention has been described specific reference to'the constructions. shown in the' companyin not'to be ted, save as pendedclaime. Iclaim as my invention:

1. A mo manentmold mounted on. a vertical cooling chamber on-the1nold,.'means manent core 'a supportm" g' the core to fbrm a cooling c means to journal the means to an ply a 000 ber thereon,

chamber,:an means'-to rotate the mold-jand core. 2. A molding machine compris' j a peron' a verti' mold' lnes V tosupthe 'cha'mber,a r-

. rface on the cast- 'mg similar to the 8urfaoe60,

drawings,-it is machine comprising a axls, a' to r ply a cooling to the chamber, a r-::-.

gllaliltle secure to plate on a vertical axis,- ling medium to the the constructionshown in Figzand the'ring 63, together with'its cast- 7 axis, h r

chamber thereon, the to supply a cooling medium and means to rotate the mold 3. A molding machine comprising a permanent mold mounted on a vertical axis, a

a, a cooling mediumtothe chamber, a perma nent core, a supporting plate secured to the core,

cooling chamber on the mold, means to supply a cooling medium to the chamber, a permanent core, a supporting late secured to the core to form a cooling cliamber thereon, a pedestal, means to move the pedestal axially, means to journal the plate on the pedestal, means to supply a cooling medium to the chamber, and means to rotate the mold and core.

4. A molding machine comprising a permanentmold mounted on a vertical axis, a cooling chamber on the mold, means to supply a cooling medium to the chamber, a permanent core, a supporting plate secured to the core to form a cooling chamber thereon, a cylindrical flange formed on the plate and extending into the chamber, a cover plate over the flange to form a sealing chamber, means to journal the first plate on a vertical axis, means to supply a cooling medium to the last named chamber, and means to rotate the mold and core.

manent mold mounted on a vertical axis, a cooling chamber on the mold, means to supply core to form a cooling chamber thereon, a cylindrical flange formed on the plate and extending into the chamber, a cover plate over the flange to form a sealin chamber, a mounting head journaling the rst plate for rotation about a vertical axis, means to supply a cooling medium to the last named chamber through the head, and means to rota te the mold and core.

6. A molding machine comprising a permanent mold mounted on a vertical axis, a coo ing chamber on the mold, means to supply a cooling medium to the chamber, a permanen core, a supporting to form a cooling 0 amber thereon, a cylindrical flange formed on the plate and extending into the chamber, a cover plate over the flange to form a sealin chamber, a mounting head journaling the rst plate for rotation about a vertical axis, means to supply a cooling medium to the last named chamber through the head, means to rotate the mold and core, and means to move the mounting head axially. I

7. A molding machine comprising a permanent mold mounted on a vertical axis, a cooling chamber on the mold, means to supply a cooling medium to the chamber, a permanent a supporting plate secured to the core to form a cooling chamber thereon, a cylindrical flange formed on the plate and extend- 5. A molding machine comprising a per late secured to the core ing into the chamber, a cover plate .over the flan e to form a sealin chamber, a mounting hea journaling the rst plate for rotation about a vertical axis, means to supply a cooling medium to the 'last named chamber through the head, means to discharge the cooling medium from the chamber through the head, means to rotate the mold and core, and'means to move the mounting head.

8. A molding machine comprising a perma-' nent mold mounted for rotation about its own vertical axis, a permanent core cooperating therewith and rotatable about the said axis, means to drop the core from the mold,

and means to remove the casting from the core during the movement of the core from the mold.

9. A molding machine comprising a permanent mold mounted for rotation about a vertical axis, a permanent core cooperating therewith and rotatable about the said axis, means to drop the core from the mold, a ring on the core engaging the casting, and means to engage the ring during the movement of the core from the mold.

10. A molding machine comprising a permanent mold mountedfor rotation about a vertical axis, a permanent core' cooperating therewith and rotatable about the said axis, means to drop the corefrom'the mold, a ring on the core and forming a molding surface,

and means to engage the ring during the movement of the core from the mold.

11. A molding machine comprising a permanent mold mounted for rotation about a vertical axis, a permanent core cooperating therewith and rotatable about the said axis, means to drop the'core from the mold, a ring on the core forming a molding surface and projecting radially beyond t e core, and spaced members to engage the ring upon the opposite sides thereof when the core is moved from the mold.

' 12. A molding machine comprising a permanent mold mounted for rotation about a vertical axis, a permanent core cooperating t therewith and rotatable about the said axis,

means to drop the core from the mold, a ring 1 on the core forming a molding surface at an angle to the vertical and projecting radially beyond the core, and spaced members to engage the ring upon the op osite sides thereof when the core is moved rom the'mold.

This specification signed this 3 day of September A. D. 1930.

' WILLIAM A. GEISLER' 

